The First Video Game You Ever Played?

The very first one you've played -- or at least remember playing? Looking for non-kiddie stuff here -- the first REAL video game, with a dedicated story and non-educational entertainment and such?

For me, it was Starship Titanic. Funny game, great design, weird logic. I finally beat it only about a year ago after an enormous pause. This was shortly followed by Grim Fandango, which I was also clueless at. Didn't even get past the second year until I revisited it so long after my first tries at it -- and I had to be helped to even accomplish that.

Weird games for a three or four year old to play, though. X_x Hehe, to explain, they were my brother's, and I borrowed them for some . . . reason I can't remember. He's just under 10 years older than me -- probably he just showed them to me so I wouldn't bother him while he played Playstation or something.

Whenever I was done I'd play a Sesame Street thing or something. I don't know.

/life story

So what's the first non-kiddie game you remember playing? Not looking for any arguments on what really constitutes a "non-kiddie game," and you should know what I mean by that.

Classic. Too bad I only recently got to finish this game on the 3DS Virtual Console. Plus, I kinda screwed myself by not reading ANYTHING, either the story scroll or the game manual and assumed that the character's name was Zelda. Gee, guess who got confused when he tried to follow the map to the dungeons.